+Added New Option to Use and add a download location for PKG files. Step 2: Make sure that third-party applications are allowed on your device. XZ files are created when the makepkg utility is run, which compiles software installation files into a PKG. Find your favorite game in the ps3 pkg games list, download it and inject it in your ps3 console and enjoy it. Pkg viewer download The installer will guide you through the software installation process.